Investigation on characterization and liquefaction of coals from Tavan tolgoi deposit

On the basis of proximate, ultimate, petrographic and IR analysis results have been confirmed that the Tavan tolgoi coal is a high-rank G mark stone coal. The results of X-ray fluorescence analysis of coal ash show that the Tavan tolgoi coal is a subbituminous coal. The ash of Tavan tolgoi coal has an acidic character. The results of pyrolysis of Tavan tolgoi coal at different heating temperatures show that a maximum yield - 5.0% of liquid product can be obtained at 700°C. The results of thermal dissolution of Tavan tolgoi coal in tetralin with constant mass ratio between coal and tetralin (1:1.8) at 450°C show that 50.0% of liquid product can be obtained after thermal decomposition of the COM (coal organic matter). DOI: http://dx.doi.org/10.5564/mjc.v14i0.191 Mongolian Journal of Chemistry 14 (40), 2013, p12-1

WEIGHT GROWT DYNAMIC OF FIRST GENERATION HYBRID KIDS OF CROSSING THE ALPINE GOATS WITH THE MONGOLIAN NATIVE ONES

The Alpine goats are originally from Alpine mountains located between France and Switzerland. The Alpine goats grow very quickly, have big and unique body figures, upstanding ears, and colors of brown, Isabella or black back with many different spots. They lead the world with their fecund and high milk yield. Since 2015, we have studied breeding domestic goat and Alpine goat to increase production of goat milk and dairy milk production and got the first generation of a hybrid kid in 2016 which located in Arvaikheer soum of Uverkhangai province.A hybrid between Alpine and Mongolian goat kid born from goat was 2.1±0.1 kg at the birth, 4.1±0.2 kg at the age of 1 months, 9.2±0.6 kg at the age of 3 months, 19.9±1.7 kg at the age of 6 months, and 21.4±1.2 at the 12 months in order to 1-year-old in average thus the birth weight increased by 10.2 times